Heart Rhythm

Hearts should have normal rhythm to their beats, but when these beats are out of synch, it causes inefficient pumping of blood. Irregular heart arrhythmias occur when the electrical signals that coordinate the heart's beats do not work properly. This can cause beats that are too fast (tachycardia), or too slow (bradycardia). Tachycardias include atrial fibrillation (AFib), supraventricular tachycardia, ventricular fibrillation, and ventricular tachycardia (VT). Bradycardias include sick sinus syndrome and conduction block. Electrophysiology arrhythmia treatments include medications, life style changes, and the EP lab interventions of catheter ablation, and implantable pacemakers or defibrillators.

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Damar Hamlin update: Buffalo Bills safety now communicating with doctors after cardiac arrest

“This marks a turning point in his ongoing care,” one doctor said in a statement. 

January 5, 2023
Buffalo Bills safety Damar Hamlin went into sudden cardiac arrest after a tackle during the first quarter of the game between the Cincinnati Bengals and the Buffalo Bills at Paycor Stadium in Cincinnati Jan 2, 2023. The incident has instantly raised awareness and brought sudden cardiac arrest to the forefront on news reports today. Image from Buffalo Bills

Buffalo Bills Damar Hamlin incident brings sudden cardiac arrest into national headlines

Buffalo Bills safety Damar Hamlin went into cardiac arrest after a tackle during the first quarter of a game with the Cincinnati Bengals on Jan 2.

January 3, 2023
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COVID-19 infection and vaccination linked to debilitating heart condition—risk from vaccines ‘relatively slim’

Postural orthostatic tachycardia syndrome is a significant, but treatable condition. The risk among COVID-19 patients was considerably higher than the risk after vaccination, researchers explained. 

December 13, 2022
Illustration of a left atrial appendage occlusion (LAAO) procedure using a Watchman device. Image courtesy of Johns Hopkins Medicine. #LAA #LAAO

Most devices implanted during LAAO procedures are oversized—and patients benefit

Oversized devices are becoming more common as time goes on, which suggests operators are growing increasingly comfortable with this treatment choice.

December 6, 2022
Sphere-9 mapping and ablation catheter

Medtronic reaches milestone in study of pulsed-field ablation and mapping catheter for AFib

A randomized study of more than 450 patients with persistent atrial fibrillation is now underway. All patients have been treated, and their outcomes will be tracked for 12 months. 

December 5, 2022
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Early catheter ablation superior to medication when treating ventricular tachycardia storm

VT storm is associated with a heightened risk of death or significant complications. Early catheter ablation, it seems, is the most effective treatment option for this potentially fatal condition. 

November 22, 2022
Elderly patient doctor. Despite an expanded indication from the FDA and lower prices, patient access to these cholesterol-lowering medications remains a significant issue.

OAC use among older AFib patients is on the rise

However, researchers noted, there is still considerable room for improvement.

November 18, 2022
Jason Andrade, MD, FRCPC, FHRS, director of electrophysiology, Vancouver General Hospital, clinical associate professor, University of British Columbia, and principal investigator for the PROGRESSIVE AF trial, explains how cryoablation can be used as a front-line treatment for atrial fibrillation (AFib). He presented this late-breaking trial at the American Heart Association (AHA) 2022 meeting, which showed the therapy can be used instead of trying drug therapy first. #AHA22 #EPeeps

VIDEO: Cryoablation can be used as frontline therapy before drugs: PROGRESSIVE AF trial

Jason Andrade, MD, director of electrophysiology, Vancouver General Hospital, and principal investigator of the PROGRESSIVE AF trial, explains how cryoablation can be used as a frontline treatment for atrial fibrillation (AFib) before drugs in this AHA late-breaker. 

November 15, 2022